Hi, I have a 99 Suburban with 6.5 Turbo. I ran over 200 thousand miles on home heating oil. No problems. Before that i had a 89 suburban with the 6.2 diesel. Same thing. over 200 K & no problems. The Military Hummers with the 6.2 & 6.5 diesels run on anything. Same engines.
Thanks, Will give it a try. Surburban has 296 K miles. I am 83 & at my age i do not want to buy another truck. Had the 99 surburban since 20000. It had 65K on it wheni bought it.